21283668

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{599}}^1$

素因数の和:666

約数の個数: 96

約数和(自身を含む): 64512000

約数和(自身を除く): 43228332

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 47, 54, 63, 84, 94, 108, 126, 141, 188, 189, 252, 282, 329, 378, 423, 564, 599, 658, 756, 846, 987, 1198, 1269, 1316, 1692, 1797, 1974, 2396, 2538, 2961, 3594, 3948, 4193, 5076, 5391, 5922, 7188, 8386, 8883, 10782, 11844, 12579, 16173, 16772, 17766, 21564, 25158, 28153, 32346, 35532, 37737, 50316, 56306, 64692, 75474, 84459, 112612, 113211, 150948, 168918, 197071, 226422, 253377, 337836, 394142, 452844, 506754, 591213, 760131, 788284, 1013508, 1182426, 1520262, 1773639, 2364852, 3040524, 3547278, 5320917, 7094556, 10641834, 21283668]

約数ペア:

[(1, 21283668), (2, 10641834), (3, 7094556), (4, 5320917), (6, 3547278), (7, 3040524), (9, 2364852), (12, 1773639), (14, 1520262), (18, 1182426), (21, 1013508), (27, 788284), (28, 760131), (36, 591213), (42, 506754), (47, 452844), (54, 394142), (63, 337836), (84, 253377), (94, 226422), (108, 197071), (126, 168918), (141, 150948), (188, 113211), (189, 112612), (252, 84459), (282, 75474), (329, 64692), (378, 56306), (423, 50316), (564, 37737), (599, 35532), (658, 32346), (756, 28153), (846, 25158), (987, 21564), (1198, 17766), (1269, 16772), (1316, 16173), (1692, 12579), (1797, 11844), (1974, 10782), (2396, 8883), (2538, 8386), (2961, 7188), (3594, 5922), (3948, 5391), (4193, 5076)]